Thin-place preventer for looms.



W. R. WIDDUP.

THIN PLACE PREVENTEB, FOB. LOOMS.

APPLICATION FILED SEPT. 20,1912.

1,1 16,188. Patented Nov. 3. 1914.

THE NORRIS PETERS C0. PHOTO-LITHU WA H!N(Jf/)N. n c

burr 'rn'rs ran'r union WILLIAM E. WIDDUIP, OF SPARTANBURG, SOUTH.CAROLINA, AS$IGNORDEONE-THIRD TO EDWARD 'IANNER AND ONE-THIRD TO THOMAS'W'OFFDRD, BOTH 033' SPARTAN- BURG, SOUTH CAROLINA.

THIN-PLACE PREVENTER FOR LOOMS.

1,11e,1ss.

To all whom it may concern 1 Be it known that 1, WILLIAM It. WIDDUI,

a citizen of the United States, residing at Spartanburg, in the countyof Spartanburg and State of South Carolina, have invented certain newand useful Improvements in Thin-Place Preventers for Looms, of which thefollowing is a specification.

This invention relates to attachments for looms for weaving, and has forits object to provide simple and effective means for binding the fillingagainst the shuttle box to furnish the loom with a thin-placeprepreventing an accumulation of lint between the hunter and theshuttle-box, the roll of the hunter also prevents the filling forming agroove in the hunter as the roll tends to keep the hunter smooth.

In applying my invention to looms the back wall of theshuttle-box on thelay is made concave at a point where the hunter engages therewith, theconcave portion corresponding as to curvature with the thread engagingface of the hunter.

In the accompanying drawings wvhich illustrate my invention, Flgure 1 1sa partial plan view of a loom showing my invention applied thereto. Fig.2 is a side elevation partly inlsection; and Fig. 3 is a side elevationpartly in section of the attachment for the loom. l a

The loom may beof the ordinary type, and 1 refers to the lay theshuttle-box 2 having its rear wall 3 provided with a concave portion,the concave recess being vertical and formed in the wall of theshuttle-box at a point where the buntera will contact therewith for thepurpose ofclamping the filling thread against such a curved or recessedbackwall of the shuttle-box. The vertical Specification of LettersBatent.

Application filed September 20, 1912. Serial No. 721,494.

Patented Nov. 3, 191a.

concave recess 6 is located to one side of the filling fork thatiscarried by the breast beam, which fork may be of the usualconstruction, and by means of my invention a grate or grid is renderedunnecessary though the same may be used as it will not interfere withthe successful operation of my invention.

To the breast beam 7 of the loom, to one side of the support for theweft or filling fork S, the thin place preventer or filling tensiondevice is applied, the same comprising a base 9 having atone end anupward projecting lug 10 providedwith an aperture 1.1, and at the otherend. nearest the lay the base has lateral extensions with apertures forthe passage of bolts which engage and retain in place a box or guide 12that is :formed to provide at its upper portion a housing 13 for aspring 14-. The base 9 has a lateral extending portion 15 that isrecessed and extends below the main portion of the base so that itsunder surface may engage the upper surface of the breast beam to whichit is secured by a bolt that passes through a rectangular and elongatedslot 16 and engages the breast beam to hold the base in place so as tohave a range of adjustment to and from the lay. The construction is suchthat the base is maintained above the plane of the upper surface of thebreast beam and the bolts that secure in place the box or guide will bein advance of the edge of the breast beam nearest to the lay. Bymaintaining the base 9 so that its end which overlies the breast beamwill be above the upper face of thebreast beam a space is provided underwhich the knock-oil lever may operate. a

The guide-bar 17 which carries the hunter 1, is made of a single piece,except the clamping plate 23 for the hunter 41, and the bar comprises acylindrical port-ion 18, having a collar or offset 19 to form a seat forone end of a spring thatcncircles the por tion 18 of the bar 17 andbears against the collar and the lug 10 to force the hunter toward thelay. Beyond the collar 19 the bar isrectangular and is formed to providean integral member 20 which extends down ward and upon which is formed ahead comprising a side piece or cheek 21 that is apertured andcountersunk for the passage of a bolt 22 which passes through the hunter4 and clamps in place a removable cheek pieceor plate 23, tlie bolteither engages with a nut or its threaded portion may engage with ascrew threaded aperture in the removable cheek piece. The bunter i: ispreferably made up of three or more pieces ofleather each having curvedfaces for engagement with the thread to provide. a hunter thatis shapedto conform with the recess (3, in the ark wall of the shuttle-box,andthe aperture for the passage of the bolt through the hunter may be oflarger-diameter thanthe= bolt 22 to permit.forward adjustment of the.bunter should. such adjustment be found desirable.

The bar 17 is normally heldin line with the upper surface of the base-by a plate 2 f.

that has a nib 25 which is overlaid by a part of the spring 14, theconstructional-3 lowing an oscillating movement of the slidable andspring pressed barcto which the bunter is fixedly attached.

lniuse when the. laymoves forward it strikes the-leather hunter andmoves the bar 17 back compressing the springthatencircles thecylindrical portion-of the bar,

and the back movement of the lay is accompanied by a downward movement,which is followed by an. oscillatory movementv of the hunter which fitstherecessfi which is the segment of a circle, the bar carrying thehunter being maintainedso thatit may rise and "fall and keep the thread.5.which is clamped between the recess and the hunter; The movement ofthebunterprovlded by the construction shown and described obviates andprevents the thread. forming a groove in the contacting face oftheibunter, as such a groove-will allowthe threadto slip, thegrooving ofthe hunter being pre-.

vented by the rocking or oscillatory motion which-is given to the-bunterby contact. of the lay therewith and. therocking or osc1l-.

a rounded face I am able to havea rigid supporting bar for the head, andthe requisite movement for proper operation is provided for by attachingthe barv to the base so that it not only has a sliding movement but alsoan oscillatory movement when the bunter is engaged by the lay. Theconstruction of the base whereby there is provided a laterally extendingand apertured portion providesmeanswhereby the base can-be attached-toLthe breast beam by the same bolt that holds the stand or guide for theslide ofv the filling detector or fork in place, and by providing for avertical 0scillatory movement of the rod carrying the hunter as well asa slidin movement it is Eunnnecessary to providea Jointbetween thebunter and the rod.

i I am aware that prior to my invention lthat-it has been proposed toprovide a fillling tension device for looms with a grid or igrate havinga straight vertical recess to ione side of the same inwhich the threadfrom the shuttle is pressed and held by a resilient finger that'isoverlaid by. a pad,

such finger being carried by the slide which.

also carries the filling detector or fork, and also that it is not newto provide a pivoted bunter that engages with the rear wall of theshuttleboxadjacent to the recess that is opposite the filling fork. Iclaim.

1. The combination in a loom of thelay and its shuttle-box theshuttle-box having a vertically disposed concave recess formed in itsback wall to one side of the filling fork. a

breast beam to=which is rigidly attached a frame. one end thereof havingan upward projecting lug with an aperture therethrough, a gu1de-box onthe opposite end of the-frame from the-apertured'lug said guide boxcomprising upward extending sides and. a top shaped to house a spring, apresser plate'maintained between the sides of the housing and providedwith an upward projecting nib, aspring which encircles the niband'bearsagainst the inner side of the'transverse portion of the housing, a barmaintained by. the frame, a spring on th'ebar to engage witha partthereof and with the-frame; whereby the bar-may slide and have avertical oscillatorymovement in the frame when'moved by the breast beamto contact with theshuttle box of the loom, and abunter havingia curvedface for en gagement with the filling thread between the shuttleuand thefilling fork.

2. Ina loom, a layprovided with a shuttle-boxahaving a concave recess inits rear wall, a supportwhich is fixedly attached to the breast beam ofthe=loom1and has at one end annpward extendingportion provided with an kaperture therethrough and at i the other end withaihousing havingside-walls and a spring actuated resser-plate, a bar so that it may havea vertical oscillatory carried by the support, a collar on the bar,movement when the hunter engages with the a spring which engages Withthe support shuttle-box.

and With the collar on the bar, for moving WILLIAM R. W'IDDUP. 5 the bartoward the lay, a bunter fixedly at- Witnesses:

tached to the bar and provided with a con- A. H. DREYER, S12,

vex face and means for maintaining the bar A. H. DREYER,JI.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. 0.

